4-String Banjo Chord Chart and Tabs in Gbb Tuning

Reb5, ReMb5, ReΔ-5
Notes: Re, Fa♯, La♭
x,1,3,4 (x123)
10,11,9,0 (231.)
x,11,9,0 (x21.)
10,7,7,6 (4231)
10,11,9,x (231x)
10,x,7,6 (3x21)